Product Evaluation Systems (PES) is an independent testing laboratory located in Latrobe, PA. PES is a proven partner in materials testing and offers exceptional turnaround specializing in mechanical, metallurgical, chemical, and non-destructive testing and analysis. Since 1979, PES has been proud to offer exceptional personalized response to customer needs and our Rapid Response, Dependable Delivery continues to help our clients streamline the process of outsourcing their materials testing.